Global and Local Controls on Depositional Cyclicity: The Canterbury Basin, New Zealand

对沉积周期性的全球和局部控制：新西兰坎特伯雷盆地

• 批准号: 9731031
• 负责人: Craig Fulthorpe
• 金额: $ 61.04万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-10-01 至 2003-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9731031&HistoricalAwards=false
• 关键词: Global; Local; Controls; Depositional; Cyclicity

9731031 Fulthorpe This award will support a marine seismic reflection program to examine the interplay of global (eustacy) and local (tectonics, sediment supply rate and ocean currents) controls responsible for continental margin sediment deposition and cyclicity. The Canterbury Basin, on the eastern margin of the South Island of New Zealand, is an excellent location in which to study these controlling environmental factors. High rates of Neogene sediment supply have resulted in the preservation of an unusually high frequency (0.5-1 m.y. periodicity), seismically resolvable record of depositional cyclicity. Progradation and aggradation have produced depositional sedimentary geometries with internal structures that are well-preserved and unplaned by erosion. High resolution multi-channel seismic data will be collected and analyzed during a field program using the R.V Ewing operated by Lamont-Doherty Earth Observatory. In addition to basic scientific analysis to be derived from the data, this research will also be used to plan future drilling by the international Ocean Drilling Program. ***

9731031 Fulthorpe 该奖项将支持海洋地震反射计划，以研究负责大陆边缘沉积物沉积和周期性的全球（平衡）和局部（构造、沉积物供应率和洋流）控制的相互作用。坎特伯雷盆地位于新西兰南岛的东缘，是研究这些控制环境因素的绝佳地点。新近纪沉积物的高供给率导致了异常高频率（0.5-1 m.y.周期性）、地震可解析的沉积周期记录的保存。进积和加积产生了沉积沉积几何形状，其内部结构保存完好且因侵蚀而未刨平。高分辨率多道地震数据将在现场项目期间使用拉蒙特-多尔蒂地球观测站操作的 R.V Ewing 进行收集和分析。除了从数据中得出基本科学分析外，这项研究还将用于规划国际海洋钻探计划的未来钻探。 ***